Uroš Mezeg dr. dent. med 1

Transcription

1 Uroš Mezeg dr. dent. med 1

2 UROŠ MEZEG DR. DENT. MED. Uroš Mezeg dr. dent. med 2

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5 MBT FILOZOFIJA V ORTODONTSKI TERAPIJI DIAGNOSTIKA IN NAČRT OBRAVNAVE IZBIRA ORTODONTSKEGA APARATA NAMEŠČANJE NOSILCEV IZBIRA LOKOV PRAKTIČNI DEL Uroš Mezeg dr. dent. med 5

6 DIAGNOSTIKA IN NAČRT OBRAVNAVE

7 Dr. Uros Mezeg Zg. Otok Radovljica OZBE MEZEG , Progress, YR. 14 MO. 9 Produced on the Dolphin DIGITAL Imaging System Uroš Mezeg dr. dent. med 7

8 STAROST: 14 let in 9 mesecev Dr. Uros Mezeg Zg. Otok Radovljica Phone: OZBE MEZEG Uroš Mezeg dr. dent. med , Progress, YR. 14 MO. 9

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11 Črna je CO Povprečje: Distalno (x): 0.1 Rdeča je CR Navpično (y):-0,1 Uroš Mezeg dr. dent. med 11

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14 Proclination of incisors Intrusion of anterior teeth Uroš Mezeg dr. dent. med 14

15 Nekontroliran tipping Kontroliran tipping Uroš Mezeg dr. dent. med 15

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18 IZBIRA ORTODONTSKEGA APARATA

19 +7º 0º -7º 10º(-10º) 17º -14º -14º -7º -7º Molars Premolars Canines Lateral incisors Central incisors -10º -20º -6º -6º -17º -12º +6º 0º -6º Uroš Mezeg dr. dent. med 19

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21 A rectangular.019/.025 steel wire in.022 slot will have approximately 10º of slop. The exact amount depends on the precision of manufacture of the wire and bracket slot and the amount of wire edge rounding or radiusing Uroš Mezeg dr. dent. med 21

22 Arch form is an important factor in selection of canine brackets in upper and lower arches. Uroš Mezeg dr. dent. med 22

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24 Bimaxillary protrusion Uroš Mezeg dr. dent. med 24

25 Without lacebacks, on average the lower incisor moved forwards 1.4 mm. Uroš Mezeg dr. dent. med 25

26 If the upper palatal bar is placed 2 mm away from the palate, tongue forces can assist in vertical control of the molars. Uroš Mezeg dr. dent. med 26

27 NAMEŠČANJE NOSILCEV NAJPOGOSTEJŠE NAPAKE PRI NAMEŠČANJU NOSILCEV REŠITVE,KI JIH PONUJA SISTEM MBT PRI NANEŠČANJU NOSILCEV Uroš Mezeg dr. dent. med 27

28 NAJPOGOSTEJŠE NAPAKE PRI NAMEŠČANJU NOSILCEV Uroš Mezeg dr. dent. med 28

29 When placing brackets, it is important to view the teeth from the correct perspective. Uroš Mezeg dr. dent. med 29

30 Teeth with roots that are lingually displaced can reveal shorter clinical crowns. Teeth with roots that are facially displaced can reveal longer clinical crowns Uroš Mezeg dr. dent. med 30

31 Horizontal bracket placement errors can result in unwanted rotation, but are avoided with attention to technique Axial bracket placement errors can result in unwanted tip, but are avoided with attention to technique Excessive adhesive under the bracket base can result in rotation errors, but are avoided with attention to technique. Figure 1 Figure 2 Figure 3 3 Bracket Placement Uroš Mezeg dr. dent. med 31

32 vertical errors The center of the clinical crown is more difficult to visualize in partially erupted teeth in young patients Uroš Mezeg dr. dent. med 32

33 Inflamed gingival causes foreshortening, which can effectively reduce the length of the clinical crowns, making the center difficult to ascertain. The bottom image is the same case as the top image, but with gingival inflammation in the upper right quadrant Uroš Mezeg dr. dent. med 33

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35 Correct vertical bracket positioning will minimize the need for detailing bends at the end of treatment. Uroš Mezeg dr. dent. med 35

36 REŠITVE, KI JIH PONUJA SISTEM MBT PRI NAMEŠČANJU NOSILCEV Uroš Mezeg dr. dent. med 36

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40 IZBIRA LOKOV Uroš Mezeg dr. dent. med 40

41 10% Tapered 45% Ovoid 45% Square 10% 45% 45% Recommended ratios Uroš Mezeg dr. dent. med 41

42 Tapered Square Ovoid Uroš Mezeg dr. dent. med 42

43 Clear templates may be used at the start of treatment to assess whether the patient s lower arch has a tapered, square or ovoid form. Uroš Mezeg dr. dent. med 43

44 .015 multistrand.0175 multistrand.014 round stainless steel.016 round stainless steel.018 round stainless steel.020 round stainless steel.016 HANT Stocked in ovoid shape only and modified to templates as necessary.019/.025 HANT Stocked in three shapes: 45% tapered 10% square 45% ovoid.019/.025 stainless steel with soldered hooks Stocked in ovoid only, or in three shapes (ovoid, tapered and square) and modified to the patient s IAF from the wax template Uroš Mezeg dr. dent. med 44

45 The lower rectangular HANT wire has been removed. Uroš Mezeg dr. dent. med 45

46 A wax template is softened in warm water and molded over the lower arch to record indentations of the brackets Uroš Mezeg dr. dent. med 46

47 The wax template viewed from the labial. Uroš Mezeg dr. dent. med 47

48 The.019/.025 rectangular steel wire is bent to the indentations Uroš Mezeg dr. dent. med 48

49 The steel rectangular wire is checked for symmetry on a template, and then a Xerox copy can be made and used as the patient s IAF for the lower arch. Uroš Mezeg dr. dent. med 49

50 After the patient s IAF has been determined for the lower archwire, an upper wire can be created which should superimpose approximately 3 mm outside of the lower wire. Uroš Mezeg dr. dent. med 50

51 PRAKTIČNI DEL

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54 In the incisor region, the gauge is placed at 90º to the labial surface. Uroš Mezeg dr. dent. med 54

55 In the canine and premolar regions, the gauge is placed parallel with the occlusal plane. Uroš Mezeg dr. dent. med 55

56 In the molar regions, the gauge is placed parallel with the occlusal surface of each individual molar. Uroš Mezeg dr. dent. med 56

57 Lower first molar non-convertible tubes are often preferable to convertible tubes, because they are less bulky. They are stronger, more comfortable, and cause fewer interferences. Uroš Mezeg dr. dent. med 57

58 Horizontal and vertical accuracy can be checked from the buccal aspect Uroš Mezeg dr. dent. med 58

59 Horizontal accuracy in the canine, premolar, and molar regions should be checked with a mouth mirror. Uroš Mezeg dr. dent. med 59

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61 Povzetek predavanja Natančna ortodontska diagnostika Določitev točnega cilja ortodontske terapije Izbira pravega sistema za ortodontsko zdravljenje Individualizaciji sistema Natančnost pri namestitvi nosilcev Uroš Mezeg dr. dent. med 61

62 Literatura

63 Hvala za pozornost! Vprašanja so dobrodošla! Uroš Mezeg dr. dent. med 63

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67 Individualized bracket-positioning chart for a first premolar extraction case Individualized bracket-positioning chart for a second premolar extraction case. Uroš Mezeg dr. dent. med 67

68 Tapered (%) Squared (%) Ovoid (%) Andrews' cases Class I sample Class II sample Uroš Mezeg dr. dent. med 68

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